How long you been playing Doolittle?
Have you been to some of the resources on the net?
Heres my suggestions:
1.Try
http://www.Netaces.org as a start
2. Read offensive and defensive tactics, pick a specific manouver from each and go to the MA determined to practice them. Once you have a good feel for them, pick another set and train on them.
3. After you've got some experience, re-read it all.
4. Warm up a little at a vacant field before heading into the fights.
5. ALWAYS film your flights & review.
6. Always constantly check your 6, ESPECIALLY when you are trying to get a gun solution on the nme, failure to do this is reason #1 noobs die a lot.
7. Spray n Pray, gunnery skills come along eventually
8. Learn how to barrel roll. Great manuever, useful in all kinds of situations.
9. Die a lot. For me, the learning curve to get to being a decent pilot was probably a month and a half of spending hours and hours glued to that keyboard.
10. Be patient. By learning manuevers, practicing them, reveiwing films, you'll start putting together some moves and enjoying successes.
Good Luck!